John Ireland

Investigator John Williams

Richard Denning

Chief Investigator Paul Reagan

Suzanne Dalbert

Margo Wayne

Robert Foulk

Commander Jackson

Mike Connors

Lt. Magrew (as Touch Conners)

Richard Avonde

Buzz Olin

William Bryant

FBI Agent in Montage (as William R. Klein)

Cicely Browne

Blonde Woman

Tommy Farrell

Agent Reynolds

Joseph Mell

Box of Taffy Man at Penn Station

Robert Hunter

Andy, alias Andre, an agent

Peter Marshall

Leo Wayne

Fred F. Sears